LACS-LINK™

In August of 2007 the United States Postal Service began requiring that all CASS Certified™ postal coding solutions perform LACS (Locatable Address Conversion System)Link™ processing as part of CASS processing. PER/LLK is the module that adds LACSLink™ functionality to PER/ZIP4.  PER/LLK is automatically installed with PER/ZIP4 and cannot be bypassed or disabled. 

Since the mid 1980s, the Enhanced 911 emergency response system has required the conversion of rural route-style addresses to city-style street names across the country. E-911 automatically associates a physical address with the telephone number from which an emergency call is made so that authorities can respond faster.

LACSLink™ data and technology enables PER/ZIP4 to automatically update mailer’s rural-style addresses with new, locatable city-style addresses in areas that are conducting E-911 emergency response address conversions. The LACSLink™ data currently contains over five million converted addresses. The LACSLink™ technology maintains the privacy and security of the data while allowing the access needed to convert outdated addresses.

LACSLink™ processing is performed by all three PER/ZIP4 interfaces; Interactive, Callable Program (API), and Batch.

Interactive Interface

While using the PER/ZIP4 interactive interface, if LACSLink™ processing results in the conversion of an address, the message Address LACS-Link™ converted will appear at the bottom of the screen.

Callable Program (API) Interface

While using the PER/ZIP4 callable program interface, if LACSLink™ processing results in the conversion of an address, the converted (new) address will be returned and the informational code “LLK” will appear in the error code (ECOD##) field.

Batch Interface

While using the PER/ZIP4 batch interface, if LACSLink™ processing results in the conversion of an address, the address will appear on the PER/ZIP4 Coding Report with an “LLK” informational code. This informational code will appear for each address that is LACSLink™ converted.

Addresses converted as a result of LACSLink™ processing will also appear on the PER/ZIP LACSLink™ Address Conversions Report.

Note: Just like “ALT”, “BNR”, and “SLK”; “LLK” is an informational code and not a true error.